Igniter.



E. G. JONES.

IGNITER.

APPLIOATION FILED MAR. 24, 1913.

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IGNITER. APPLICATION FILED MAR. 24, I913.

' 1,074,265. Patented Sept.30,1913.

2 SHEETS-SHEET Z.

(2i F 7' Q COLUMBIA PLANOGRAPH Co.. WASHINGTON. n. c.

UNITED STATES Parana orrucn.

EDWIN CHARLES JONES, OF TORONTO, ONTARIO, CANADA, ASSIGNQR OF ONE-HALF TO JAMES PEARSON, OF TORONTO, ONTARIO, CANADA.

IGNITER.

Specification of Letters Patent.

Application filed March 24, 1913.

Patented Sept. 30, 1913.

Serial No. 756,586.

"I hereby declare that the followingis a full, clear, and exact description of' the same.

My invention relates particularly to an.

igniter which will automatically create a spark substantially coincident with the arrival of the gas at the burner outlets, the object of my invention being to so devise and arrange the parts and provide for their operation that they will maintain this spark during the entire period of movement of the spark-producing element on the rubbing surface, by gradually increasing the pressure of the spark-producing element against the rubbing surface'as it moves from its starting position. This object I accomplish by the structural character and arrangement of the parts hereinafter.v described and illustrated in the accompanying drawings, in which:'

Figurel, is an elevation, partly 1n section, of a gas heating appliance, showing the heater, the burner, the gas supply, the igniter combined therewith, and an air conduit; Fig. 1, is a vertical section through Fig. 1; Fig. 2, is a vertical section through the igniter; Fig. 3, is an end elevation of the igniter; Fig. 4:, is arplan view ofthe same; and, Fig. 5, is. a detail view of the rubbing surface. H Like characters of reference refer to like parts throughout the specification and drawings.

In Fig. 1,1 haveshown a heater consisting of a reticulated cylindrical casing a provided with a heater bottom I; and a top 0. Within the lower part of the. heateris a burner cZ connected with the air mixer e which in turn is connected by a gas pipe 7 with the gas supply source. The air mixer e is provided with a lever g by which the valve controlling the flow of gas from the gas pipe f into the mixer e is opened and closed, and connected to the lever g is a rod h engaging in the hook-shapedhandle part 2' of the bar carrying the spark-producing element "is of the igniter. The igniter comprises a supporting structure Z which, as shown in Fig. 2, is of a substantially inverted triangular shape, and is provided at its lower end with a hub Z and set screw Z by which the supporting structure Z is fitted on the gas pipe f and rigidly locked in its fixed relation thereto. At the upper end of the supporting structure Z, is a rubbing surface m consisting preferably of a piece of. serrated steel, and engaging with the rubbing surface on is the spark producing element is. This spark-producing element is is removably fitted to the bar j so that it can from time to time be renewed to obviate the wear caused by its contact wit-h the rubbing surface. On the opposite side of the bar 7' to the spark-producing element 7c is a cam-shaped projection 0 and engaging the bar 7' and cam-shaped projection 0 is a grooved roller '9 having a man drel g journaled in a forked bearing 7", the ends of the mandrel Q projecting beyond the sides of the forked bearing 7' and through slots 8 in the sides 8 of the supporting structure Z. The forked bearing r is formed with a pin t, at right angles to the mandrel q which'extends through the side 8" of the supporting structure Z and guides the move ment of the forked bearing 7' and roller p during the movement of the bar j and spark-producingelement 7a to and from their normal position. Coiled on the pin 25 is a spring a which bears at one end against the side 8" and at the other end against the forked bearing 1" to normally maintain the grooved roller p in contact with the bar 3' and the cam-shaped projection 0, to maintain the spark-producing element is in contact with the rubbing surface m. Revoluble between the sides 8 of the supporting structure Z is a groovedroller e which guides the lengthwise movement of the bar 7' as it travels to and from its normal position.

In the operation of the igniter, the bar j is drawn in the direction indicated by arrow in Fig. 2 of the drawings, either manually or mechanically, as hereinafter described. During the movement of the bar j in this direction, the cam-shaped projection '0 engaging with the grooved roller 2) enables this roller, which is tensioned by the spring u, to press the spark-producing element .70 forcibly against the rubbing surface m, and owing to the cam-shaped character of the projection 0, this spring-pressed roller is enabled to gradually increase the pressure of the spark-producing element 72 against the.

rubbing surface to insure the formation and maintenance of the ignition spark. As the bar y moves in the dlrection indicated by arrow 1n Fig. 2, the grooved roller 7; co-ijperating with the spring-pressed roller 79, maintains the normal relation of the bar j to the rubbing surface to evenly wear the contact-' movement of the lever g, this rod it draws the bar j in the direction indicated by arrow to cause the same spark-producing effect.

In a construction similar to that shown in Fig. 1, when the lever g is operated to open the valve for the flow of gas from the gas pipe through the mixer e to the burner (Z, the rod 7i simultaneously causes the movement of the spark-producing element It along the rubbing surface m and produces a. spark coincident with the arrival of the gas at the burner outlets, and ignites the gas at that point for its combustion. To maintain a supply of sufficient oxygen at the burner for perfect combustion, I have, in the case of a gas heater, provided suitable apertures w in the bottom of the heater, through which the air passes to the burner. The heater above the burner and below the top 0, is provided with a radiator y having air ducts 2 extending through the bottom of the casing, through which cold air is supplied from the air conduit to connected with a source of fresh air supply, this air, when heated, being discharged through a suitable air vent or vents a. By means of a feature of this kind, I am able to readily ignite the gas substantially simultaneously with the opening of the gas valve even when the burner is inaccessible to the operator, and in cases of that kind, the igniter is of particular value, as it prevents the escape of the gas from the burner into the heater and the troubles arising therefrom through delaying ignition at the proper moment. By means of the cam-shaped projection 0, the springpressed roller 7) is able to restore thebar j and related parts to their normal position when released of the downward moving force. 7

Having thus fully described the nature 7 of my invention, what 'I claim as new and desire to secure by Letters Patent, is

1. An igniter comprising a supporting structure, a rubbing surface fixedly connected thereto, a movable rod having at one end a handle part by which it can be operated, and at the other end a spark-produc- 601 ing element engaging with said rubbing suri'ace, a cam-shaped projection on said rod,

and a spring-tensioned presser engaging said rod and cam-shaped projection whereby the spark-producing 'eleinentis main tained in contact with saidrubbing surface, with gradually increasing pressure as it moves from its normal position. Y

2. An igniter comprising a supporting structure, a rubbing surface fixedly connected' thereto, a movable rod'having at one end a handle part by whichit can be operated, and at the other end a spark-producing element engaging with said'rubbing surface, a cam-shaped projection on said rod, spring-pressed roller engaging said rod and camshaped projection whereby the quark-producing element is maintainedin contact with said rubbing surface, with gradually increasing pressure as it moves from its normal position, and a guide roller cooperating with the spring-pressed roller to maintain said rod in a fixed path during its movements.

Toronto, February 21st, 1913.

EDWIN CHARLES Signed in thepresence of- CrIAs. H. RIGI-IES, EDWARD BERNSTEIN.

OopIesof this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

